Lubricating device for closed bores or holes



Feb. 22, 1944. E. D. PHILLIPS LUBRICATING DEVICE FOR CLOSED BORES OR HOLES Filed June 14, 194:5

W /M 6 Z 44 Mi M7 w WW 2 Q %A/ d g 7 5 4 1 W I flnmmfo'z Elf/V537 a PHILLIPS Patented F eb. 22, 1944 LUBRICATING DEVICE FOR CLOSED BORES 0R HOLES Ernest D. Phillips, Los Angeles, Calif. Application June 14,

7 Claims.

This invention relates to a lubricating an opening such wet or lubricated.

While the invention is applicable in a situation where it is desired to wet the surface of a tube it is especially useful when applied to lubricate a bore or a hole formed in a machine part from below, the bore or hole being closed above.

An object of the invention is to provide simple means for insuring that an immersion of the article or machine part in the liquid, will result in bringing the liquid into contact with the wall of the bore or hole.

In practice, it is sometimes necessary to perform a machine operation such as tapping, that is to say, cutting a thread in a number of small drilled holes in an article such as a. small ma- Further objects of the invention will appear hereinafter.

to this device.

Fig. 2 is an ideal vertical section lubricating oil that is carried in the liquid-holder or cup of the device.

Fig. 3 is a bottom plan of the article such as the machine part illustrated in Fig. 2.v

Fig. 4 is a vertical section taken on the line below when the same is applied 1943, Serial No. 490,737

l4 of Fig. 3, passing through the machine part that is to be lubricated, and showing it in the same position in which it is illustrated in Fig. 2. This view illustrates the relation of the lubrieating spurs which pass into the holes when the article or machine part is pushed down into the cup and immersed in the liquid.

Referring to Figs. 1 and 2, it should be said that these views illustrate-the invention as applied to a small article such as a machine part I, which is provided with a plurality of small drilled holes 2 that extend into the same from an end face 3 of the article. In the present instance, I have illustrated the construction involving the use ofsix of. these openings 2 which necessitate the use of an equal number of lubricators or spurs 4 which align with these openings or holes 2, and which will pass into the openings when the article I is immersed in the liquid 5 that is confined in the body or holder 6 of the device which is of cup form, and provided with a bottom 611 from which the spurs 4 extend upwardly.

In order to insure'that when the machine part the cup with guiding means in the form of a verrib 1 has a concave the liquid to rise to a considerable height in the holes 2.

Although a cup with pins in its bottom can be "used as described for accomplishing the purposes to provide means for assisting in the quick withdrawal movement of the part i after it has been deeply immersed in the liquid 5. For this purpose I prefer to provide resilient means mounted in the cup in such a way that this resilient means such as a coil spring I2, will develop a force urging the part I upwardly after it has been deeply immersed. As this spring eliminates a considerable part of the work in raising the part, and assists the movement at a time when the assistance is needed, because it is evident that only very slight eifo-rt is necessary to push the article down into the cup, and this movement need not he suddenly accomplished; while on the other hand, the upward movement must be quickly accomplished, and the spring materially helps in this. Although in some situations I may simply place the coil spring in a position at the bottom of the cup where it will contact directly with the lower end of the article that is being immersed, I prefer to provide the interior of the cup with a rest I3 which is in the form of a collar with a plurality of outwardly projecting leaves or ears I4, the upper faces of which provide a rest for the face 3 of the part I when it is about to be immersed, and these leaves I4 are spaced apart so as to leave the clearance angles I5 between the same, at which the pins or spurs 4 are located.

The part I that is illustrated, may have a substantially cylindrical body I6 in the end face 3 of which the holes 2 are formed, and the other end of the article may have a bore I'I of reduced diameter, which is formed inside of a hexagon-shaped upper end I8.

In order to facilitate the entrance of the spurs G into the holes, the upper ends I9 of the s urs are preferably tapered to a blunt point. These spurs 4 have a diameter of course slightly less than the diameter of the holes 2 into which they move when the article I is depressed, although they should not fit tight. Of course when they withdraw from the holes in the upward movement of the part I, the space that they occupy develops a partial vacuum, and as the lower end face 3 of the part I is still located below the level of the liquid, the atmospheric pressure on the surface of the liquid will force it up in the holes, thereby wetting their inner surfaces.

Guiding means such as the guide rib 'I is Darticularly useful, because it makes it unnecessary for the operator of the device to use any particular care in regard to the matter of orientation of the part when it is inserted into the cup. It is merely necessary to apply the lower end of the part I so that the curved portion of its perimeter I0 is located adjacent to this rib.

Although I have performing the service of lubricating holes or bores, the inner ends of which are closed, it will be obvious that the invention is also useful for lubricating the inner faces of holes that are open at the upper end; for example, holes drilled in flanges. In such a case, however, there is no particular difficulty in getting the liquid to pass through the hole.

Many other embodiments of the invention may be resorted to without departing from the spirit of the invention.

What I claim is:

illustrated my invention as I 1. In a device for wetting the surface of a bore that is closed above and extends up into an article from below; the combination of a holder for the liquid, having a spur projecting upwardly and adapted to pass into the said bore and displace a portion of the atmospheric air within the same when the said article is immersed in the liquid, said spur operating to create a partial vacuum in the bore when the said article is quickly raised during the immersion, thereby causing the liquid to flow up into the bore.

2. In a device for wetting the surface of a bore that is closed above and extends up into an article from below; the combination of a holder for the liquid having a spur projecting upwardly and adapted to pass into the said bore and displace a portion of the atmospheric air within the same when the said article is immersed in the liquid; a depressible rest for the article, with means for normally holding the rest in an elevated position, all of said parts cooperating when the article is placed on the rest and depressed, to force the spur up into the bore, so that when the article is quickly raised during the immersion a partial vacuum will be developed in the bore that causes the liquid to flow up into the same.

3. A device of the kind described, constructed according to claim 2, provided with a plurality of bores with spurs corresponding to the same, and including means for facilitating the proper orientation of the article to insure alignment of the spurs with their corresponding bores.

4. A device of the kind described, constructed according to claim 2, in which a spring is provided for normally maintaining the rest in an elevated position, and guiding means is provided on the holder for guiding the article in an oriented position to align said bores with their corresponding spurs.

5. In a device for wetting the surface of a plurality of drilled holes extending up into an article from below; the combination of a cup for holding the liquid, said cup having a plurality of spurs projecting upwardly and adapted to pass into the said drilled holes and displace a portion of the atmospheric air within the same when the said article is immersed in the liquid, a coil spring disposed below the article and compressed by the article when it is pushed downwardly within the cup, said spurs operating to create a partial vacuum in the drilled holes when the said article is quickly raised during the immersion, thereby causing the liquid to flow up into the said holes.

6. In a device for wetting the surface of a plurality of drilled holes that are closed above and that extend up into an article from below; the combination of a holder having a cup form body with a bottom having an upwardly extending guide member, a rest for the article and guided on said guide member,said bottom having a plurality of upwardly projecting spurs aligning respectively with the said drilled holes when the article is placed on the rest for immersion in the liquid, a coil spring disposed around said guide member and thrusting against the under side of the rest, said spurs operating to create a partial vacuum in the drilled holes when the said article is immersed and quickly raised, thereby causing the liquid to flow up into the holes.

'7. A device of the kind described, constructed in accordance with claim 6, in which the inner wall of the cup is provided with means for maintaining the article in a properly oriented position as it moves downwardly in the liquid to insure that the spurs align with their corresponding holes.

ERNEST D. PHILLIPS. 

